Fiscal depute John Malpass said: "Constables Arthur and Smith arrived to assist and attempted to enter the property, but the accused reacted to this and locked the back door of the property, preventing the officers from entering and Sergeant Ross from leaving.

"Sergeant Ross became increasingly concerned for his personal health and safety as both the accused were behaving aggressively towards him."

After about 20 minutes the officer managed to persuade Davidson to unlock the door but when he then placed a handcuff on McDonald she started pushing and pulling him in an effort to prise them apart.

Mr Malpass said: "McDonald then began to struggle, tensing his arms and lashing out.

"He then aimed a kick at his body, but this officer managed to clench his legs together and swivel to the side."